Improvement in suspended lifting-jacks



I H. c. HAVEMEYER. I improvement in Suspende d Lifting Jac'ks.

Patented Oct. 24,1871.

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gunman /f6% Mm w r UNITED STATES HECTOR O. HAVEMEYER, OF NEW YORK, N. Y.

IMPROVEMENT IN SUSPENDED LlFTlNG-JACKS.

, Specification forming part of Letters Patent No. 120,275, datedOctober 24, 1871.

To all whom it may concern:

Be it known that I, HECTOR G. HAVEMEYER, of the city, county, and Stateof New York, have invented certain Improvements in SuspendedLifting-Jacks, of which the following is a specification:

Figure 1 represents a front view of my improved lifting-jack. Fig. 2 isa side view of the same. Fig. 3 is a transverse section of the same onthe line 0 c, Fig. 1.

Similar letters of reference indicate correspondin g parts.

This invention relates to a new manner of applying hydrauliclifting-jacks, with the object of using them in warehouses, magazines,sugarhouses, shops, &c., for holding goods, hogsheads, or other devices,suspended and conveying the same along elevated tracks from one toanother part of the buildings. The invention consists in suspending thelifting-jack from a truck running on an elevated track; in providing itwith guiderods and a lower cross-piece, whereby it is adapt ed to thesuspended position and to the operation of lifting goods from the floor;and in the application to it of a universal joint, allowing it to swingin either direction without running the truck off the rails or springingthe plunger.

A in the drawing represents a hydraulic jack of ordinary or suitableinternal structure, a being its outer case and b the inner slide orplunger. To the upper end of the case a is secured a pair of projectingpins or trunnions, d d, which have their bearings in a ring, B. Thisring has projecting pins 6 e at rightangles to the pins d, but nearly inthe same plane as the same. The pins 6 have their hearings in thependent frame of a truck, 0, whose wheels f stand on an elevated track,D, asclose to the ceiling of the establishment as practicable. The jackis in this manner suspended from the truck by a universal joint, and canswing in either direction on the pins 61 d and c e. To a projectinghead, g, which is attached to the upper end of the sliding part b, aresecured vertical rods h h, of proper strength. They pass throughperforated ears M projecting from the sides of the case a, and holdunder the lifting-jack a cross-piece, j, to which a hook, k, orequivalent implement, is secured.

When the jack is operated it will elevate the slide 11 in the case a,and thereby, also, the rods h, cross-piece j, and hook k. Any articlefastened to the hook can thus be elevated above the floor, and heldsuspended from the jack and truck, and may, with the latter, beconveniently conveyed on the track D. A very economical, powerful, andsimple means of conveying heavy goods is thus provided.

Having thus described my invention, I claim as new and desire to secureby Letters Patent-- 1. The hydraulic jack provided with the rods h h,cross-piece j, and hook k, substantially as specified.

2. The lifting-jack, provided with the projecting trunnions cl d andcombined with the ring B having the pins 6 e, substantially asdescribed, so that a universal jointis thus produced, forthe purposespecified.

3. The combination of a hydraulic jack with the ring B and truck 0, tooperate substantially as herein shown and described.

HECTOR O. HAVEMEYER;

Witnesses:

A. V. BRIESEN,

GEORGE W. ll/IABEE. (79)

